CN212331230U - Presser foot suitable for mechanical drilling - Google Patents

Abstract

The utility model provides a presser foot suitable for mechanical drilling, which is characterized in that the presser foot comprises a presser foot main body and a presser foot plate, the presser foot main body is provided with a central hole, the front end of the presser foot main body is provided with a row cutting groove, the included angle between the row cutting groove and the tangent line of the central outer edge is an acute angle, the presser foot plate comprises a first pressing plate, a second pressing plate, a third pressing plate, a fourth pressing plate and a fifth pressing plate, the outer diameter of the first pressing plate is gradually increased from front to back, and the cross section of the outer edge of the first pressing plate is in an arc shape which is bent; the utility model has the advantages that: the included angle between the row cutting groove and the tangent line of the outer edge of the central hole is an acute angle, so that the length of the row cutting groove is increased, and the size of the row cutting groove is increased; form annular sunken between first clamp plate and the presser foot main part, annular sunken outside is uncovered, and annular sunken is used for stepping down the pin, satisfies the pin and steps down and arrange and cut the requirement.

Description

Presser foot suitable for mechanical drilling

Technical Field

The utility model relates to a drilling machine accessory technical field especially relates to a presser foot suitable for mechanical drilling.

Background

The existing drilling machine presser foot has various shapes and structural forms, the main functions of the existing drilling machine presser foot are the functions of flattening a workpiece and removing and cutting, the drilling machine presser foot firstly bears the functions of flattening a conductive aluminum plate on the workpiece and flattening the workpiece when a PCB numerical control drilling machine drills holes, so that the workpiece is perpendicular to a drill bit of a main shaft to ensure the drilling precision, and secondly, the drilling machine presser foot is also responsible for sucking away dust and debris generated during drilling. Through long-term production practices, the existing drilling machine presser foot cannot meet the requirement of pin abdicating and is limited in cutting arrangement capacity.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a presser foot suitable for mechanical drilling.

In order to realize the purpose, the technical scheme of the utility model is that:

a presser foot suitable for mechanical drilling is characterized in that the presser foot comprises a presser foot main body and a presser foot plate which are sequentially connected in the front-back direction, a central hole is formed in the presser foot main body along the axial direction of the presser foot main body, a plurality of rows of cutting grooves are arranged at the front end of the presser foot main body in a concave mode, one ends of the cutting grooves are connected with the outer edge of the central hole, the other ends of the cutting grooves are connected with the outer edge of a first pressing plate, the cutting grooves are rectangular, the included angle between the cutting grooves and the tangent line of the outer edge of the central hole is an acute,

the presser foot plate is provided with a cylindrical hollow part along the axial direction, the presser foot plate comprises a first pressing plate, a second pressing plate, a third pressing plate, a fourth pressing plate and a fifth pressing plate which are sequentially connected from front to back, the outer edge of the first pressing plate is circular, the outer diameter of the front side of the first pressing plate is equal to that of the presser foot main body, the outer diameter of the first pressing plate is gradually increased from front to back, the cross section of the outer edge of the first pressing plate is in an arc shape bent inwards, the second pressing plate, the third pressing plate, the fourth pressing plate and the fifth pressing plate are cylindrical, the outer diameter of the second pressing plate is equal to that of the rear end of the first pressing plate, the outer diameters of the third pressing plate, the fourth pressing plate and the fifth pressing plate are smaller than that of the second pressing plate, the outer diameters of the third pressing plate and the fifth pressing plate are equal, and the outer diameter of the fourth pressing plate is smaller than that of the third.

The utility model has the advantages that: the included angle between the row cutting groove and the tangent line of the outer edge of the central hole is an acute angle, so that the length of the row cutting groove is increased, and the size of the row cutting groove is increased; form annular sunken between first clamp plate and the presser foot main part, annular sunken outside is uncovered, and annular sunken is used for stepping down the pin, satisfies the pin and steps down and arrange and cut the requirement.

Drawings

Fig. 1 is a schematic front structural view of the present invention;

fig. 2 is a schematic side view of the present invention;

fig. 3 is a schematic view of the back structure of the present invention.

Reference numerals:

1 Presser foot body

2 presser foot plate 21, first presser plate 22, second presser plate 23, third presser plate 24, fourth presser plate 25 and fifth presser plate

3, a central hole 4 and rows of cutting grooves 5 are cylindrical hollow.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model discloses a presser foot suitable for mechanical drilling, a serial communication port, as shown in fig. 1, presser foot main part 1 and presser foot board 2 that connect gradually around including, presser foot main part 1 is equipped with centre bore 3 along its axial, the front end of presser foot main part 1 is sunken to be equipped with a plurality of rows and cuts groove 4, arrange the one end of cutting groove 4 and be connected with the outer fringe of centre bore 3, arrange the other end of cutting groove 4 and be connected with the outer fringe of first clamp plate 21, it is the rectangular channel to arrange to cut groove 4, it is the acute angle with 3 outer fringe tangent lines's of centre bore contained angle to arrange to cut groove 4, it is preferably 6 to arrange the figure of cutting groove 4, arrange to cut groove 4 and centre bore 3 contained angle and increased the length of arranging cutting groove 4 for the design of acute angle, arrange the size of cutting groove 4.

As shown in fig. 3, the presser foot plate 2 is provided with a cylindrical hollow 5 along the axial direction thereof, as shown in fig. 2, the presser foot plate 2 comprises a first presser plate 21, a second presser plate 22, a third presser plate 23, a fourth presser plate 24 and a fifth presser plate 25 which are sequentially connected from front to back, the outer edge of the first presser plate 21 is circular, the outer diameter of the front side of the first presser plate 21 is equal to the outer diameter of the presser foot main body 1, the outer diameter of the first presser plate 21 is gradually increased from front to back, the cross section of the outer edge of the first presser plate 21 is arc-shaped and is bent inwards, so that an annular recess is formed between the first presser plate 21 and the presser foot main body 1, the outer side of the annular recess is open, and the front side of the presser foot is provided with an annular recess for.

As shown in fig. 2 and 3, the second pressing plate 22, the third pressing plate 23, the fourth pressing plate 24, and the fifth pressing plate 25 are cylindrical, an outer diameter of the third pressing plate 23 is equal to an outer diameter of a rear end of the second pressing plate 22, outer diameters of the third pressing plate 23, the fourth pressing plate 24, and the fifth pressing plate 25 are smaller than an outer diameter of the second pressing plate 22, outer diameters of the third pressing plate 23 and the fifth pressing plate 25 are equal, an outer diameter of the fourth pressing plate 24 is smaller than outer diameters of the third pressing plate 23 and the fifth pressing plate 25, so as to form a clamping groove, and when the clamping tool is used, the clamping tool can extend into the clamping groove between the third pressing plate 23 and the fifth pressing plate 25 to clamp.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (1)

1. A presser foot suitable for mechanical drilling is characterized in that the presser foot comprises a presser foot main body and a presser foot plate which are sequentially connected in the front-back direction, a central hole is formed in the presser foot main body along the axial direction of the presser foot main body, a plurality of rows of cutting grooves are arranged at the front end of the presser foot main body in a concave mode, one ends of the cutting grooves are connected with the outer edge of the central hole, the other ends of the cutting grooves are connected with the outer edge of a first pressing plate, the cutting grooves are rectangular, the included angle between the cutting grooves and the tangent line of the outer edge of the central hole is an acute,

the presser foot plate is provided with a cylindrical hollow part along the axial direction, the presser foot plate comprises a first pressing plate, a second pressing plate, a third pressing plate, a fourth pressing plate and a fifth pressing plate which are sequentially connected from front to back, the outer edge of the first pressing plate is circular, the outer diameter of the front side of the first pressing plate is equal to that of the presser foot main body, the outer diameter of the first pressing plate is gradually increased from front to back, the cross section of the outer edge of the first pressing plate is in an arc shape bent inwards, the second pressing plate, the third pressing plate, the fourth pressing plate and the fifth pressing plate are cylindrical, the outer diameter of the second pressing plate is equal to that of the rear end of the first pressing plate, the outer diameters of the third pressing plate, the fourth pressing plate and the fifth pressing plate are smaller than that of the second pressing plate, the outer diameters of the third pressing plate and the fifth pressing plate are equal, and the outer diameter of the fourth pressing plate is smaller than that of the third.

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